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Multiplying Decimals Worksheet

Speed calculation lesson 18: Decimal × decimal · Set 622 · 40 questions
TalentJR

The fast method (Count the places): Forget the points and multiply the whole numbers: 2.5 × 1.4 → 25 × 14 = 350. Count the decimal places in both numbers: 1 + 1 = 2. Put the point that many places from the right: 3.50 — then drop the 0 at the end: 3.5.

NameDateTime takenScore ___ / 40
  1. 1.5.1 × 0.8 =
  2. 2.0.29 × 2.3 =
  3. 3.0.71 × 3.8 =
  4. 4.0.35 × 2.7 =
  5. 5.0.76 × 3.3 =
  6. 6.0.43 × 2.9 =
  7. 7.6.3 × 0.11 =
  8. 8.7.2 × 1.6 =
  9. 9.5.1 × 1.9 =
  10. 10.0.69 × 3.4 =
  11. 11.5.7 × 0.29 =
  12. 12.0.51 × 0.4 =
  13. 13.0.7 × 0.9 =
  14. 14.0.27 × 0.5 =
  15. 15.0.23 × 2.2 =
  16. 16.5.7 × 1.4 =
  17. 17.3.5 × 0.28 =
  18. 18.0.96 × 3.9 =
  19. 19.3.1 × 0.05 =
  20. 20.0.29 × 1.1 =
  21. 21.0.74 × 1.8 =
  22. 22.1.1 × 3.5 =
  23. 23.0.37 × 2.1 =
  24. 24.0.4 × 0.21 =
  25. 25.1.6 × 1.2 =
  26. 26.4.3 × 0.29 =
  27. 27.6.1 × 0.8 =
  28. 28.3.5 × 3.8 =
  29. 29.1.4 × 0.19 =
  30. 30.5.4 × 0.21 =
  31. 31.4.1 × 3.5 =
  32. 32.3.7 × 0.38 =
  33. 33.0.71 × 0.9 =
  34. 34.2.7 × 3.7 =
  35. 35.4.4 × 3.5 =
  36. 36.0.4 × 0.33 =
  37. 37.0.13 × 0.2 =
  38. 38.1.9 × 3.2 =
  39. 39.0.63 × 2.4 =
  40. 40.1.3 × 2.1 =

Answer key

  1. 4.08
  2. 0.667
  3. 2.698
  4. 0.945
  5. 2.508
  6. 1.247
  7. 0.693
  8. 11.52
  9. 9.69
  10. 2.346
  11. 1.653
  12. 0.204
  13. 0.63
  14. 0.135
  15. 0.506
  16. 7.98
  17. 0.98
  18. 3.744
  19. 0.155
  20. 0.319
  21. 1.332
  22. 3.85
  23. 0.777
  24. 0.084
  25. 1.92
  26. 1.247
  27. 4.88
  28. 13.3
  29. 0.266
  30. 1.134
  31. 14.35
  32. 1.406
  33. 0.639
  34. 9.99
  35. 15.4
  36. 0.132
  37. 0.026
  38. 6.08
  39. 1.512
  40. 2.73

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